|“||Victims are implanted with a Chryssalid egg if they are killed by a Chryssalid's attack (not from poison caused by Poisonous Claws).||”|
– In-Game Description, XCOM: Enemy Unknown
This ability allows Chryssalids to automatically implant an egg into the corpse of any human, be it an XCOM soldier or a civilian, that they kill with their melee attacks. The following turn, an implanted corpse will rise from the dead as a hostile Zombie. If not taken down within three turns, the Zombie's true purpose as incubator is revealed when a newborn Chryssalid explodes from the host's remaining flesh ready to continue the cycle of death and parasitic reproduction.